Climate by Place

Atlanta, GA climate: monthly averages and frost dates

Atlanta, GA has cool winters and hot summers by this site's scale, with wet annual precipitation. The figures are the 1991–2020 climate normals for NOAA station USW00013874 (ATLANTA HARTSFIELD INTL AP), 9 mi (15 km) in a straight line from the city's center point (US Census).

Warmest month high
90.1°F
July
Coldest month mean
44.8°F
January
Precipitation
50.4 in
per year
Snowfall
2.2 in
per year
Median last frost
March 15
32°F, spring
Median first frost
November 20
32°F, autumn

Monthly averages in Atlanta

Atlanta, GA: normal high, low and precipitation by month Normal daily high and low by month and monthly precipitation for Atlanta, GA. Highs peak in July at 90.1°F; the wettest month is July at 4.75 in. 20°F 40°F 60°F 80°F 100°F 32°F 54 58 66 74 81 87 90 89 84 74 64 56 36 39 45 52 61 69 72 71 66 55 44 38 5 in 4.6 4.5 4.7 3.8 3.6 4.5 4.8 4.3 3.8 3.3 4.0 4.6 J F M A M J J A S O N D Normal daily high Normal daily low Precipitation (in)
NOAA 1991–2020 monthly normals, station USW00013874. “–” means NOAA publishes no value.
MonthHigh °FLow °FMean °FPrecip. inSnow inDays ≥0.01 inDays ≥90°FNights ≤32°F
January 54.035.644.84.591.0 11.10.012.8
February 58.238.948.54.550.4 10.40.07.7
March 65.945.355.64.680.4 10.50.03.0
April 73.852.563.23.810.0 8.90.00.2
May 81.161.371.23.560.0 9.42.00.0
June 87.168.677.94.540.0 11.19.90.0
July 90.171.880.94.750.0 12.016.40.0
August 89.071.380.24.300.0 10.213.70.0
September 83.965.974.93.820.0 7.34.90.0
October 74.454.964.73.280.0 6.80.30.1
November 64.144.254.23.980.0 7.90.02.9
December 56.238.447.34.570.4 10.70.09.1
Year 73.154.163.650.432.2 116.347.135.7

How cold is winter in Atlanta?

Winters in Atlanta are cool by this site's scale (coldest-month mean 32 to under 45°F). The coldest month is January, with a mean temperature of 44.8°F (7.1°C), a normal daily high of 54.0°F (12.2°C) and a normal daily low of 35.6°F (2.0°C).

The station averages 35.7 nights a year at or below 32°F and 1.2 days when the high stays at or below 32°F.

How hot is summer in Atlanta?

Summers in Atlanta are hot by this site's scale (hottest-month high 90 to under 100°F). July has the highest normal daily high, 90.1°F (32.3°C), with nights averaging 71.8°F (22.1°C).

The high reaches 90°F or more on 47.1 days in a normal year.

The normal daily high itself is 90°F or above in July.

What is the wettest month in Atlanta?

Atlanta gets 50.43 in (1281 mm) of precipitation in a normal year, which this site classes as wet (40 to under 60 in a year). The wettest month is July with 4.75 in (121 mm); the driest is October with 3.28 in (83 mm).

Measurable precipitation (0.01 in or more) falls on 116.3 days a year.

Does it snow in Atlanta?

Normal annual snowfall in Atlanta is 2.2 in (6 cm), which this site classes as light (1 to under 12 in a year).

January is the snowiest month, with 1.0 in (3 cm).

A day with 1.0 in or more of snowfall comes 0.8 times a year on average.

Which months are mild in Atlanta?

5 months in Atlanta meet this site's comfort thresholds (normal high 65–85°F, low 45°F or higher, fewer than 10 days with 0.10 in or more of precipitation): March to May, September and October.

Thresholds and their limits: methodology.

Frost dates and growing season in Atlanta

In Atlanta the median last spring night at or below 32°F is March 15, and the median first autumn one is November 20 (NOAA P50 dates). NOAA's median length of the freeze-free season is 252 days. NOAA takes that median over each year's own season, so it need not equal the 250 days between the two median dates.

There is still a 10% chance of a 32°F night on or after April 4, and a 10% chance that the first one has come by November 4.

The chance that the last spring 32°F night comes on or after February 23 is 90%.

For a hard freeze (28°F or lower) the median dates are February 28 in spring and December 5 in autumn.

32°F frost dates by probability (NOAA PRBLST, PRBFST, PRBGSL). The 50% row is the median. Season lengths are NOAA’s own percentiles of each year’s season, so they need not equal the gap between the two dates in the same row.
ChanceLast spring 32°F night on or afterFirst autumn 32°F night byFreeze-free season, days
10%April 4November 4281
20%March 28November 8271
30%March 23November 13265
40%March 18November 16258
50%March 15November 20252
60%March 12November 23246
70%March 7November 28241
80%March 1December 2234
90%February 23December 10226
Median (P50) dates at each temperature threshold NOAA publishes.
ThresholdMedian last date (spring)Median first date (autumn or winter)Median season, days
36°F March 29November 7226
32°F March 15November 20252
28°F February 28December 5281
24°F February 11December 25313
20°F January 28January 5339
16°F January 20January 11364
Chance of at least one night at or below 32°F in the month (NOAA MLY-TMIN-PRBOCC-LSTH032).
JanFebMarAprMayJunJulAugSepOctNovDec
99%95%77%15%0%0%0%0%0%3%74%94%

Nearby and similar places

Of the places on this site, the closest to Atlanta by station distance are Asheville, NC at 165 mi (266 km), Nashville, TN at 214 mi (344 km) and Charlotte, NC at 227 mi (366 km).

Among places whose winter, summer and precipitation words are each within one band of Atlanta's (winter: cool, summer: hot, precipitation: wet), the closest monthly temperature and precipitation patterns are Nashville, TN, Charlotte, NC and Asheville, NC.

Compared with Asheville, NC, Atlanta's peak-month normal high is 4.8°F (2.7°C) higher, its coldest-month mean is 6.1°F (3.4°C) higher, and its annual precipitation is 0.84 in more.

PlaceListed asStation distanceColdest mean °FWarmest high °FPrecip. in/yrSnow in/yrLast frost
Atlanta, GAthis page–44.890.150.42.2March 15
Asheville, NCnearby, similar165 mi (266 km)38.785.349.610.3April 9
Nashville, TNnearby, similar214 mi (344 km)39.690.950.54.7March 31
Charlotte, NCnearby, similar227 mi (366 km)42.190.343.63.5March 30

How nearby and similar places are chosen: methodology.

Source and station

The data for Atlanta come from NOAA station ATLANTA HARTSFIELD INTL AP, GA US (USW00013874) at 33.6300, -84.4417, elevation 1,010 ft (308 m). It lies 9 mi (15 km) in a straight line from the center point of Atlanta city, the “internal point” in the US Census 2024 Gazetteer.

Each monthly normal used here rests on at least 20 years of data from 1991–2020 (NOAA's per-field year counts).

NOAA completeness flags on the monthly fields used here:

  • P: Provisional: meets WMO standards for data availability for 10 or more years (missing months cannot be filled).
  • S: Standard: meets WMO standards for data availability for 24 or more years.

Cite the data as:

Palecki, Michael; Durre, Imke; Applequist, Scott; Arguez, Anthony; Lawrimore, Jay (2021). U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020). Station USW00013874 (ATLANTA HARTSFIELD INTL AP, GA US). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/wck8-er13. Accessed 2026-10-09.

Palecki, Michael; Durre, Imke; Applequist, Scott; Arguez, Anthony; Lawrimore, Jay (2021). U.S. Climate Normals 2020: U.S. Annual/Seasonal Climate Normals (1991-2020). Station USW00013874 (ATLANTA HARTSFIELD INTL AP, GA US). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/4ek7-fk11. Accessed 2026-10-09.

Files used: monthly normals CSV, annual/seasonal normals CSV (retrieved 2026-10-09). The values on this page as JSON: /us/ga/atlanta/data.json.